HYDROPHYLLACEAE. 



VOL. III. 



2. Nama quadrivalvis (Walt.) Kuntze. 

 Hairy Nama. Fig. 3500. 



Hydrolea qitadrivalvis Walt. Fl. Car. no. 1788. 

 H. caroliniana Michx. Fl. Bor. Am. i : 177. 1803. 

 N. quadrivalvis Kuntze, Rev. Gen. PI. 435. 1891. 



Similar to the preceding species, but pubes- 

 cent, at least above, and on the calyx, with 

 spreading hairs, usually bearing slender spines 

 in the axils ; stem ascending, i-2 high. Leaves 

 lanceolate, acute or acuminate, glabrous, or 

 sparingly pubescent, petioled, 2,'-$' long, 3"-8" 

 wide; lower petioles \' long, or more; flowers 

 in axillary clusters ; sepals lanceolate or linear- 

 lanceolate, acuminate, about as long as the 

 corolla ; capsule 2"-^" in diameter, longer than 

 the styles, about the length of the sepals. 



In wet soil, southeastern Virginia to Florida 

 and Louisiana. June-Aug. 



3. Nama ovata (Nutt.) Britton. Ovate- 

 leaved Nama. Fig. 3501. 



Hydrolea ovata Nutt. Trans. Am. Phil. Soc. (II.) 



5: 196. 1833-37. 

 N. ovata Britton, Mem. Torr. Club 5: 272. 1894. 



Stem erect or nearly so, i-3 high, usually 

 branched near the summit, puberulent, or 

 somewhat hirsute, at least above, usually spine- 

 bearing in most of the axils. Leaves ovate, 

 rarely ovate-lanceolate, puberulent or glabrous, 

 short-petioled, or the upper almost sessile, 

 i'-2i' long, i'-ii' wide, acute at the apex, nar- 

 rowed or rounded at the base ; flowers often 

 i' broad or more, in terminal clusters; 

 sepals lanceolate, acuminate, very villous, 

 shorter than the corolla, longer than the cap- 

 sule; styles longer than the sepals. 



In wet soil, Georgia to Missouri, Louisiana and 

 Texas. May-Sept. 



1836. 



Family 24. BORAGINACEAE Lindl. Nat. Syst. Ed. 2, 274. 



BORAGE FAMILY. 



Annual, biennial or perennial herbs, shrubs, or -some tropical species trees. 

 Leaves alternate, very rarely opposite or verticillate, exstipulate, mostly entire 

 and hispid, pubescent, scabrous or setose. Flowers perfect, usually regular, mostly 

 blue, in one-sided scorpioid spikes, racemes, cymes, or sometimes scattered. Calyx 

 inferior, mostly 5-lobed, 5-cleft, or 5-parted, usually persistent, its lobes valvate. 

 Corolla gamopetalous, mostly regular and 5-lobed, sometimes crested or append- 

 aged in the throat, rarely irregular, its lobes imbricated, convolute, plicate or 

 induplicate in the bud. Stamens as many as the corolla-lobes and alternate with 

 them, inserted on the tube or throat ; filaments slender or short ; anthers 2-celled, 

 the sacs longitudinally dehiscent. Disk annular, entire, or 5-lobed, or none, com- 

 monly inconspicuous. Ovary superior, of 2 2-ovuled carpels, entire, or the carpels 

 commonly deeply 2-lobed, making it appear as of 4 i-ovuled carpels ; style simple, 

 entire or 2-cleft in our genera; ovules anatropous or amphitropous. Fruit mostly 

 of 4 i-seeded nutlets, or of 2 2-seeded carpels. Endosperm none; embryo straight 

 or curved ; cotyledons mostly flat or plano-convex ; radicle short. 



About 85 genera and 1500 species, of wide geographic distribution. 



